有线连接在 Ubuntu 10.04 下不起作用

有线连接在 Ubuntu 10.04 下不起作用

(在进行任何更新之前,在上网本上使用 Ubuntu 10.04 LTS)无线工作正常,有线连接已使用 Windows 计算机进行了测试。

从电源管理器中选择 auto eth0 失败。

使用 Wicd 网络管理器 - 按连接到有线网络 - “连接”有线网络:正在获取 IP 地址... - 连接失败:无法获取 IP 地址

alex@alex-laptop:~$ ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:24:54:df:22:d5  
      inet6 addr: fe80::224:54ff:fedf:22d5/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:8558 errors:0 dropped:0 overruns:0 frame:0
      TX packets:48 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:526280 (526.2 KB)  TX bytes:9564 (9.5 KB)
      Interrupt:18 

在 eth0 上测试 dhclient

alex@alex-laptop:~$ sudo dhclient eth0
[sudo] password for alex: 
Internet Systems Consortium DHCP Client V3.1.3
Copyright 2004-2009 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eth0/00:24:54:df:22:d5
Sending on   LPF/eth0/00:24:54:df:22:d5
Sending on   Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 18
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
No DHCPOFFERS received.
No working leases in persistent database - sleeping.

运行 dmesg

    alex@alex-laptop:~$ dmesg | grep eth0
[    1.092888] sky2 eth0: addr 00:24:54:df:22:d5
[   13.521498] sky2 eth0: enabling interface
[   13.522027] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   15.036628] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control rx
[   15.099270] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   21.505203] sky2 eth0: disabling interface
[   21.516896] sky2 eth0: enabling interface
[   21.517394] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   21.544054] sky2 eth0: disabling interface
[   21.573775] sky2 eth0: enabling interface
[   21.574326] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   23.085959] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control rx
[   23.086287] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   33.488031] eth0: no IPv6 routers present
[   98.269052] sky2 eth0: disabling interface
[   98.289665] sky2 eth0: enabling interface
[   98.290176] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   99.795289] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control rx
[   99.795826] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[  110.272732] eth0: no IPv6 routers present
[  133.463522] sky2 eth0: Link is down.
[ 7748.854103] sky2 eth0: Link is up at 100 Mbps, full duplex, flow control rx

运行 ifup

    alex@alex-laptop:~$ sudo ifup eth0
[sudo] password for alex: 
Ignoring unknown interface eth0=eth0.

运行lspci

    alex@alex-laptop:~$ lspci | grep -i ethernet
09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller
alex@alex-laptop:~$ lshw -c Network | driver
WARNING: you should run this program as super-user.
No command 'driver' found, did you mean:
 Command 'drivel' from package 'drivel' (universe)
driver: command not found
alex@alex-laptop:~$ lshw -c Network | grep driver
WARNING: you should run this program as super-user.
       configuration: broadcast=yes driver=wl0 driverversion=5.60.48.36 latency=0 multicast=yes wireless=IEEE 802.11
       configuration: broadcast=yes driver=sky2 driverversion=1.25 firmware=N/A latency=0 multicast=yes

跑步路线

  alex@alex-laptop:/etc$ route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
link-local      *               255.255.0.0     U     0      0        0 pan0
link-local      *               255.255.0.0     U     0      0        0 eth1

我看到过建议/etc/dhcp3/dhclient.conf通过在 rfc3442 前面放置 # 来编辑文件并保存并重新启动,但这不起作用。

然后我尝试添加到/etc/network/interfaces 自动 eth0 iface eth0 inet dhcp。最初的接口文件是:

auto lo
iface lo inet loopback

我编辑为:

 auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp

然后从启动中删除网络管理器,重新启动后这也没有帮助。任何想法为什么有线连接仍然无法工作?

答案1

您的第一个块表明您的本地网络上没有 DHCP 服务器。当你说网络接口在Windows下测试时是在这个网络上吗?如果是,只需复制设置即可。如果不是,请致电您的 ISP 以获取连接信息。可能需要一些 PPPoE 魔法,甚至需要提供您的 MAC 地址,以便他们能够使其获得 DHCP 配置。

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